1. citadel
927 stars+2 this week
An open-source operating layer for Claude Code and OpenAI Codex.
fanbox alternatives: 12 Claude Code plugins like alchaincyf/fanbox
Flowy lists 1,115 other Development plugins like fanbox, ranked by shared technologies, then GitHub stars; nothing in this list is paid.
Published · Updated · By Flowy
How they compare
| Plugin | Stars | 7 days | Updated | License | Contains |
|---|---|---|---|---|---|
| fanboxThis page | 1,054 | +15 | Oct 12, 2026 | MIT | 1 skill |
| 1citadel | 927 | +2 | Oct 25, 2026 | MIT | 48 skills, 7 agents |
| 2cross-code-organizer | 385 | +2 | Oct 20, 2026 | MIT | 1 skill, 1 MCP server |
| 3maister | 258 | +3 | Oct 25, 2026 | MIT | 17 skills, 25 agents, 6 commands, 1 MCP server |
| 4architecture-diagram | 137 | +11 | Oct 22, 2026 | MIT | 1 skill |
| 5ultraship | 123 | 0 | Jul 8, 2026 | MIT | 45 skills, 13 agents, 16 commands, 3 hooks, 2 MCP servers |
| 6craftcms-claude-skills | 86 | 0 | Oct 27, 2026 | MIT | 13 skills, 6 agents |
| 7wp-block-theme-converter | 49 | +1 | Oct 23, 2026 | MIT | 1 skill, 1 agent, 42 commands, 1 hook |
| 8better-harness | 2,410 | +15 | Oct 20, 2026 | MIT | 4 skills |
| 9webperf-snippets | 1,456 | +2 | Oct 27, 2026 | MIT | 6 skills, 1 MCP server |
| 10auteur | 1,040 | -2 | Aug 6, 2026 | MIT | 1 skill |
| 11claude-code-hooks | 567 | +21 | Oct 26, 2026 | MIT | 8 skills |
| 12agentops | 451 | 0 | Oct 27, 2026 | Apache-2.0 | 31 skills, 5 agents, 1 hook |
The 12 closest alternatives
2. cross-code-organizer
385 stars+2 this week
Cross-Code Organizer (formerly Claude Code Organizer): cross-harness config dashboard for Claude Code, Codex CLI, MCP servers, skills…
3. maister
258 stars+3 this week
Structured, standards-aware development workflows for Claude Code Describe what you want to build, and the plugin handles the rest - from…
4. architecture-diagram
137 stars+11 this week
Build click-through, animated system architecture diagrams as a single HTML file.
5. ultraship
123 stars0 this week
"ULTRASHIP" Claude Code plugin — 39 skills, 33 tools, 11 agents for ship-ready workflows: planning, review, pentesting, safety guardrails…
6. craftcms-claude-skills
86 stars0 this week
Production-ready Claude Code skills, agents, and project templates for Craft CMS 5 development.
7. wp-block-theme-converter
49 stars+1 this week
A Claude Code plugin (and standalone skill) for converting any HTML/CSS/JavaScript project into a production-ready WordPress Block Theme…
8. better-harness
2,410 stars+15 this week
An open-source Harness Engineering platform for coding agents—define harnesses as code, run controlled experiments, inspect evidence, and…
9. webperf-snippets
1,456 stars+2 this week
Tested JavaScript snippets that measure and debug web performance.
10. auteur
1,040 stars-2 this week
The Claude Code skill that directs a website like a film.
11. claude-code-hooks
567 stars+21 this week
🪝 Ready-to-use hooks for Claude Code, shipped as a 22-plugin installable marketplace: safety, automation, notifications, and more.
12. agentops
451 stars0 this week
DevOps discipline for AI coding agents.
Questions about fanbox alternatives
What is the best alternative to fanbox?
citadel is the first of 12 alternatives to fanbox by shared technologies: it has 927 stars (behind fanbox), gained 2 stars this week and ships 48 skills against 1 for fanbox.
Which fanbox alternative has the most skills?
citadel has the most, with 48 skills of the 12 alternatives listed. fanbox has 1.
Is fanbox free?
Yes. fanbox is published under the MIT license, so it is free to use.